"Popeye the Sailor Meets Ali Baba's Forty Thieves," found at Archive.org, and Bugs Bunny cartoons, found at Emol.org, are some free cartoons available for download. The Popeye cartoon is from 1937 and many Bugs Bunny cartoons are from the 1940s, making them public domain and available for free.
"Popeye the Sailor Meets Ali Baba's Forty Thieves" is a classic cartoon starring Popeye and his girlfriend, Olive Oyl. This cartoon plays on the classic Arabian story "Ali Baba and the Forty Thieves." The cartoon, from the Paramount Pictures production company, runs for 16 minutes and 58 seconds.
An example of an available Bugs Bunny cartoon is the "Case of the Missing Hare," from 1942. This cartoon is about Bugs Bunny declaring war on a magician; the cartoon runs eight minutes and 14 seconds. Bugs' voice, provided by Mel Blanc, is a mix of a New Yorker's Brooklyn and Bronx accent. This character's world famous line from these cartoons is "..eeh, what's up, doc?" Many of the cartoon episodes revolve around Bugs and some of his nemeses, such as Elmer Fudd, Daffy Duck and Tweety Bird.
The Bugs Bunny cartoons are a Warner Bros. production and are a part of Looney Tunes and Merry Melodies. Originally an opening feature played before movies, Bugs Bunny cartoons are still a favorite on cable television for kids today.